Home / 86,812.20-130,270.07-38,777.04

Finding the Fourth Proportional to 86,812.20, 130,270.07 and 38,777.04

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Solution

The fourth proportional to 86,812.20, 130,270.07 and 38,777.04 is: 58,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,812.20 : 130,270.07 = 38,777.04 : x
  2. Step 2: Convert to fraction form
    86,812.20/130,270.07 = 38,777.04/x
  3. Step 3: Cross multiply
    86,812.20x = 130,270.07 × 38,777.04
  4. Step 4: Simplify right side
    86,812.20x = 5,051,487,812.14
  5. Step 5: Solve for x
    x = 5,051,487,812.14/86,812.20
  6. Step 6: Final answer
    x = 58,188.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.